Home / 12,417,830.20-18,647,999.70-6,749,126.20

Finding the Fourth Proportional to 12,417,830.20, 18,647,999.70 and 6,749,126.20

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Solution

The fourth proportional to 12,417,830.20, 18,647,999.70 and 6,749,126.20 is: 10,135,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417,830.20 : 18,647,999.70 = 6,749,126.20 : x
  2. Step 2: Convert to fraction form
    12,417,830.20/18,647,999.70 = 6,749,126.20/x
  3. Step 3: Cross multiply
    12,417,830.20x = 18,647,999.70 × 6,749,126.20
  4. Step 4: Simplify right side
    12,417,830.20x = 125,857,703,352,862.14
  5. Step 5: Solve for x
    x = 125,857,703,352,862.14/12,417,830.20
  6. Step 6: Final answer
    x = 10,135,241.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.